Typewriter



Se t. 4, 1923.

F. E ORMSBY TYPEWRITER Filed July 24, 1922 2 Sheets-Sheet l Inveniorf Sept. 4, 1923. 1,467,191 F. E. ORMSBY TYPEWRITER Filed July 24, 1922 2 Sheets-She et z Inverdzon Patented Sept. 4, 1923.

UNITED STATES FRANK E. ORMSBY, OF CHICAGO, ILLINOIS.

TYPEWBITEB.

Application filed July 24, 1922. Serial N0. 577,217.

To all whom it may concern:

Be it known that I, FRANK E. ORMSBY, a citizen of the United States, residin at Chicago, in the county of Cook and tate of Illinois, have invented certain new and useful Improvements in Typewriters, of which the following is a description.

My invention belongs to that geneiral class of writing machines used in correspondence, and has for its object the production of such a device, simple and practically noiseless in its operation, and, I believe, possessing advantages both in construction and operation over devices of the kind at present available. To this end it consists in the novel construction, arrangement and combination of parts herein shown and described, and more fully pointed out in the claims.

In the drawings wherein like reference characters indicate like or corresponding parts,

Figure 1, is a plan view looking down from the top.

Figure 2, is a detail view taken from the side or right.

Figure 3, is a transverse vertical section taken substantially on line 3 3, Fig. 2.

'Figure 4, is a vertical section illustrating inking device.

Figure 5, is a partial and sectional view illustratin ratchet and release mechanism.

In the rawings 1, (Figs. 1,2,) represents the frame base, upon which my improved device is arranged, 2 is a double slotted keyguide segment mounted upon the base, in

which character keys indicated by 3 are set,

said keys having two prongs, (see Fig. 2,) the upper ones serving as 11ft levers and the lower ones forming stops, and resting upon the upper prongs are three lift frames, two

of which are duplex or twins as indicated by 4 4, pivotally supported at the ends of key segment 2, the other frame 5, has its fulcrum at the extreme edge or back of the body frame and is shaped to form an alinement with key segments. Lift frames 4 4 have each two arms or branches, the upper ones being curved or shaped in alinement with key segment, (see Figs. 1, 2, 3,) the other or lower arms extending direct to shaft and upon the ends thereof are spring clutches 6 6, (see Fig. 3,) which engage a duplex segment 7 7, sup orted by a shaft 8, the larger segment mem r forming a support for a set of spring typebars or carriers 9.

Frame 5 has an extension upward which supports an adjustable presser bar 10, having at its extreme end a wheel 11, which rolls upon an idle spring set lug or hammer 12, having an anchor pin 13, that engages segment 7 and anchors type at the vertical point for impression.

Operating reciprocally with type segment 7 7 by means of miter gears 14, is a swivelbar 15, extending beneath-the shaft 8, to and under a portion of key segment 2, in close proximity to the lower prongs of keys, which, when keys are prest and the prongs move forward, alternately stops, holding the letter in segment 7 corresponding therewith in position at the vertical pomt for im ressilon.1

mu ti e se ent sta s rin 16 over keys and ey-gu i d e segm nt indi vidiializes key action and holds lift frames in normal positions.

While the construction is such as admits using a common ribbon mechanism, I have devised a fabricated disc inker 17, which is operated by a ratchet or push spring pivotally supported by lift frame 5, which revolves the inker about the face of type. (See Figs. 1, 2, 4.) 1 I Platen roll 18, moves in guideways 19, the roll being supported and shifted by a toggle jointed frame section 20, operated within the carriage frame 21, the latter operating frictionally on a base 22. Theshiftingof platen roll is governed by a bell-crank 23, (see Fig. 2,) having at its extreme end a wheel 24, that engages the toggle jointed frame and is operated by a duplex 'bellcrank shift-key, 25, connected by push-rod 26, and, at the key end is a standard 27, a key latch. 28, that locks one member of the duplex key and holds platen roll in a static position.

A duplex carriage spacer ratchet 29, is operated to the left as in writing by lift frame 5, controlled by character keys 3 and main spacer key 30, the latter meeting the under side of lift frame 5, which admits spacing without oscillation of type segment. The other member of duplex ratchet which is termed the back spacer, is operated by a bell-crank key 31, push-rod 32, connecting with a bell-crank 33 which disenga the pall of the former member ratchet and l iolds it in inoperative position in the process of back spacing. (See Fig. 5.) H

Lever 34 operates linespacer ratchet 3:) and carriage or ratchet release bar 30, the latter holding both ratchets in inoperative positions leaving the carriage to he moved freely in either direction.

Feed roll 37, release 38. platen return spring 39, paper stays -10 it), and line sets including signal bell 41 etlall common featurescomp1etes the description of my invention, which, in its operation by reason of the elimination of clicking mechanismescapement, impact of striking typcbars and other noise producing partsrcduces the same to practically a noiseless typewriter..

, definite point for impression, substantially as decribed.

2. The combination in a typewriting machine of letter or character keys, having forked ends or two prongs, set in a duplex or double slotted key-guide frame segment mounted upon the base of frame body, the lower prongs forming stops, a co-operating swivel-bar, pivotally supported at the radial point or center of a circle circumscribing the key-guide segment and in alinement with keys and slots, substantially as set forth.

3. The combination in a typewriter of a frame base and mounted thereon a double slotted key-guide segment, letter or character keys having forked ends or prongs, a reciprocating swivel-bar that meets the lower prongs of keys and comes to a stop, a shaft, having one end pivotally supported at the radial point or center of a circle circumscribing the key-guide segment, mitergeared to the swivel-bar, and mounted upon the shaft a duplex type supporting segment, having openings, grooves or holes in alinement with type characters, a set of detachable or interchangeable spring typebars vor carriers, twin lift frames pivotally supported at either end of key-guide segment, each member having two arms or branches, one above the other, the upper one shaped or curved in alinement with key segment and resting u on the upper prongs of keys, the other or owcr arm extending straight to shaft, having upon the ends thereof lift mounted upon a frame base, forked or two pronged letter or character keys set therein, the upper prongs serving as levers upon which rests a spacer and presser lift-frame, having an extension upward over keys supporting an adjustable presser bar having at the extreme end a wheel that engages and rolls upon an idle spring set lug or hammer" having an anchor pin that engages an oscillating type supporting segment and anchors at the vertical point the character corresponding with the key operated. I

5. In a device of the kind described, the combination in a typewriter of a frame or base, having mounted thereon a double slotted key-guide segment, a set of character keys havlng two prongs, the directional line of keys and slots being toward the radial center circumscribing key segment, a reciprocating swivel-bar pivoted at the radial point, extending to and moving under a portion of the key segment in close proximity with the lower prongs of keys which operate forward and form a stop for the swivelbar, a shaft miter-geared to the swivel-bar at the radial point, a duplex type supporting segment, mounted upon the shaft, lift frames one at the right and one at the left of the' shaft, pivotally supported by the key segment, each having two forks or arms, the upper members being bent or shaped in alinement with key segment and resting upon the u per prongs of keys, the lower arms exten ing straight to shaft or center point, and upon theextreme ends thereof lift spring levers or clutches that engage the typebar segment and cause it to oscillate when pressure is applied to keys, which brings the letter corresponding with the key prest to the vertical point, the reciprocating swivel-bar meetin the key prong stabilizing the same, a 1i t frame shaped in alinement with the key segment and resting upon the upper prongs of keys, having an extension upward supporting an adjustable presser bar, having at its extreme end a wheel, a spring set idle lug or hammer, having a pin or anchor point, a set of detachable or interchangeable sprin typebars or carriers supported by the osci lating segment, operated by ressure as the presser bar wheel engages t e idle lug or hammer and presses it against the type carrier, the anchor pin entering the socket in segment, holding the type firmly while the impression'is made.

6. In a typewriter, the combination of a duplex right and left spacer ratchet, one member operated by spacer and presser lift frame controlled by character keys and main spacer key, the s acer key extending to the under side of li t frame, the other'ratchet member, which is termed the back spacer, operated by a bell-crank key and push-rod connecting with a bell-crank lever, which, when in service, engages the pall of the other ratchet member and holds it inoperative, a line space ratchet operated by a carriage push-lever, a carriage or ratchet release rod or bar operated by push-lever, which holds both palls of duplex ratchet in inoperative positions allowing carriage to be moved freely in either direction.

7. In a typewriter, a fabricated disc inking pad or ribbon substitute supported by a detachableil ratchet disc reteltiner and operatfid b a pus -sprin pivota supported y sgacer lift frame, which rgvolves the inker in harmony with key action.

8. In a typewriter, a toggle jointed platen roll support and shift frame, operated by a duplex bell-crank shift-key and push-rod engaging a bell-crank lever, having at its extreme end a wheel that engages the toggle 'ointed frame, a key locking standard and ey latch that holds platen roll static, a multiple stay-spring segment supported by keyuide segment over keys and lift frame mem rs holding them in inoperative or nor- 30 mal positions, all substantially as set forth.

FRANK E. ORMSBY. 

